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Technical Data Sheet
PartsTable / MRO / FA203
FA203 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_length: 12.280 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, body_outside_diameter: 5.120 INCHES NOMINAL IN, functional_terminal_type_and_quantity: 1 THREADED STUD OUTPUT SECOND FUNCTION, operating_current_rating_per_function_in_amps: 50.0 BLANK LOCATION NOT OTHERWISE SPECIFIED, operating_voltage_rating_and_type_per_function: 50.0 VOLTS DC BLANK LOCATION NOT OTHERWISE SPECIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-442-5934, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ FA203
NSN: 4730-00-442-5934
FSC: 4730
CAGE: 02249 — PARKER HANNIFIN CORPORATION DBA GRESEN HYDRAULICS DIV HYDRAULIC VALVE DIVISION (USA)
SPECIFICATIONS
body_length12.280 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
body_outside_diameter5.120 INCHES NOMINAL IN
functional_terminal_type_and_quantity1 THREADED STUD OUTPUT SECOND FUNCTION
operating_current_rating_per_function_in_amps50.0 BLANK LOCATION NOT OTHERWISE SPECIFIED
operating_voltage_rating_and_type_per_function50.0 VOLTS DC BLANK LOCATION NOT OTHERWISE SPECIFIED
NSN4730-00-442-5934
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FA203 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BODY OUTSIDE DIAMETER: 5.120 INCHES NOMINAL IN
•
BODY LENGTH: 12.280 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER5.120 INCHES NOMINAL IN
BODY LENGTH12.280 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
E-1675Interchangeable
interchangeable cross-reference
interchangeable
FA203Interchangeable
interchangeable cross-reference
interchangeable
FA203AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FA203?
FA203 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace FA203?
There are 3 known substitutes for FA203: E-1675, FA203, FA203A. Substitute compatibility should be verified for your specific system.
What is the NSN for FA203?
FA203 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-442-5934. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026